#    Copyright 2014 Mirantis, Inc.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.


from nailgun.expression.expression_parser import parse


class Expression(object):
    def __init__(self, expression_text, models=None, strict=True):
        self.expression_text = expression_text
        self.models = models if models is not None else {}
        self.strict = strict
        self.compiled_expression = parse(self)

    def evaluate(self):
        return self.compiled_expression()
